Method for draining of solid-containing substances such as nodular resins, powder resins, filter aids, filter sludges, abrasive agents and/or sludge, comprises filling a substance in the form of suspension in a lockable flexible cover

摘要

The method for draining of solid-containing substances such as nodular resins, powder resins, filter aids, filter sludges, abrasive agents and/or sludge, comprises filling a substance in the form of suspension in a lockable flexible cover (10) and sucking liquid from the substance via a suction tube by a filter (12) arranged in the flexible cover. In the first drainage step, the freely flowing liquid is sucked and separated by sedimentation of solids from the substance filled in the flexible cover. The flexible cover is arranged in a structure-casing such as barrel and in a pressure container. The method for draining of solid-containing substances such as nodular resins, powder resins, filter aids, filter sludges, abrasive agents and/or sludge, comprises filling a substance in the form of suspension in a lockable flexible cover (10) and sucking liquid from the substance via a suction tube by a filter (12) arranged in the flexible cover. In the first drainage step, the freely flowing liquid is sucked and separated by sedimentation of solids from the substance filled in the flexible cover. The flexible cover is arranged in a structure-casing such as barrel and in a pressure container. The suction tube flows into filtering mediums surrounded by an interspace, from which the liquid is sucked in a second and third drainage step. In the first drainage step, the suction tube is subjected with negative pressure in such a manner that a pressure difference (delta p) is formed between outer- and inner side of the filtering medium of the filter. The filter is used as a filter lance with the suction tube surrounding under adherence of an annular gap by the filtering medium. The filter lance is vertically arranged during the first drainage step. The negative pressure is adjusted between the inner- and outer side of the filtering medium in such a manner that the pressure difference is 100 = delta p = 600 mbar with a mesh size of 10 mu m. The pressure difference (delta p) is increased between the inner- and outer side of the filtering medium in cascade manner. The deformation of the flexible cover is affected during suction of the liquid through structuring and/or inserting in the flexible cover. The interspace between the pressure container and the cover is subjected with a liquid such as water or air. The flexible cover is subjected with pulsating air and a heated dry air. Before bringing the substance into a bearing container such as intermediate- or ultimate waste disposal containers, the flexible cover is filled with the substance in multiple manner. An independent claim is included for an arrangement for draining of solid-containing substances such as nodular resins, powder resins, filter aids, filter sludge, abrasive agent and/or sludge.